On Thursday, October 3, 2024 at 7:34:32 PM UTC-6 Alan Grayson wrote:
On Thursday, October 3, 2024 at 7:02:26 PM UTC-6 Brent Meeker wrote: The universe is spatially flat and it always has been and it's infinite spatially and always has been. It had an earliest state we know about that was very dense and hot and things have expanded from that state. Brent *It would be desirable and intellectually honest if, instead of preaching the Gospel (the consensus view among cosmologists who can't think clearly), you could argue against my logic. Too much to ask? AG* *So you "think" the universe has always been spatially infinite and yet had a beginning in the BB, as confirmed by the CMBR? AG* On 10/3/2024 8:59 AM, Alan Grayson wrote: On Thursday, October 3, 2024 at 9:50:12 AM UTC-6 Cosmin Visan wrote: You can only ever observe yourself. So by unobservable you mean the minds of other consciousnesses ? I'm seeking substantive responses, so please refrain from posting on this thread. AG On Thursday 3 October 2024 at 17:21:28 UTC+3 Alan Grayson wrote: To recapitulate and clarify the argument: Firstly, by "universe" (our "bubble"), I mean the observable *and* unobservable regions defining our expanding universe. Secondly, since our universe is expanding, we could run the clock backward to any earlier time, and imagine enclosing it in a sphere, say, establishing that the observable region is finite in spatial extent. (It's actually measured to have a radius of 46 BLY.) Thirdly, concerning the *un*observable region, let's assume it's infinite in spatial extent. If so, this couldn't have occurred in stages, say by spatial expansion, since no matter how fast it might expand, or for how long a length of time, it would remain finite throughout, and could never achieve infinite status. Hence, the only way it could be infinite in spatial extent, would be for it to be either *UN*-*created*, or if it had a beginning it must have expanded *instantaneously* to infinity in spatial extent. These options are falsified in two ways; first by the CMBR, which is predicted by the Big Bang. That is, empirical evidence affirms it had a starting time. And second, as previously argued, if it is now infinite in spatial extent and had a beginning, it would have had to expand *instantaneously* to infinity. Since I consider this physically impossible -- which is my unproven and likely unprovable assumption -- by two lines of argument our universe must be finite in spatial extent. Final conclusions:, being *finite* in spatial extent, *it cannot be flat* (despite the consensus view), since that implies infinite in spatial extent (assuming it's not toroidal). And there is no need to do any measurements. Using a purely logical argument, our universe is finite in spatial extent and cannot have a flat global geometry. Its likely global geometry is approximately spherical, since it's expanding in all directions from every point in spacetime and is approximately isotropic. What could be *uncreated and infinite in space and time*, is the substratum from which our universe emerged. QED, AG -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/66ab8acd-3a49-4f69-9817-24fad7eb64afn%40googlegroups.com <https://groups.google.com/d/msgid/everything-list/66ab8acd-3a49-4f69-9817-24fad7eb64afn%40googlegroups.com?utm_medium=email&utm_source=footer> . -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/0b90961f-9d52-46f8-b506-b4a60616402an%40googlegroups.com.
